22 Dec '15 15:24

**weird topic alert**

Im trying to make a list of fascinating numerical sequences as part of a display in a classroom. I like sequences such as Fibonacci and Triangular sequences but any different ones that people like on here?

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wildly content...- Joined
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22 Dec '15 17:17

Ask <https://www.youtube.com/user/numberphile>. They've featured quite a few of them.*Originally posted by Silverstriker***[b]weird topic alert**

Im trying to make a list of fascinating numerical sequences as part of a display in a classroom. I like sequences such as Fibonacci and Triangular sequences but any different ones that people like on here?[/b]- Joined
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slatington, pa, usa- Joined
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Covid-1922 Dec '15 23:13

What age range are we talking about?*Originally posted by Silverstriker***[b]weird topic alert**

Im trying to make a list of fascinating numerical sequences as part of a display in a classroom. I like sequences such as Fibonacci and Triangular sequences but any different ones that people like on here?[/b]- Joined
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wildly content...22 Dec '15 23:18

omg!!!*Originally posted by moonbus***Pythagorean triples less than 100:**

(3, 4, 5), (5, 12, 13), (7, 24, 25), (8, 15, 17), (9, 40, 41), (11, 60, 61), (12, 35, 37), (13, 84, 85), (16, 63, 65), (20, 21, 29), (28, 45, 53), (33, 56, 65), (36, 77, 85), (39, 80, 89), (48, 55, 73), (65, 72, 97)

you made me learn something i NEVER knew before!!!

for the FIRST TIME IN MY LIFE i know

very little... ðŸ˜ž ðŸ˜ž ðŸ˜ž

https://www.mathsisfun.com/numbers/pythagorean-triples.html- Joined
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slatington, pa, usa23 Dec '15 10:39

Nice site! Did I detect a tiny but noticeable thread of implied sarcasm here?*Originally posted by rookie54***omg!!!**

you made me learn something i NEVER knew before!!!

for the FIRST TIME IN MY LIFE i know

very little... ðŸ˜ž ðŸ˜ž ðŸ˜ž

https://www.mathsisfun.com/numbers/pythagorean-triples.html

One thing I wondered about. If Pathags are infinite but a smaller number of the full set of real numbers, doesn't that make the infinity of real numbers bigger than the infinity of Pathags?- Joined
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23 Dec '15 13:25

You go wonky if you try to think about different infinities as being bigger or smaller than other ones. Think of infinities as having characteristics, not 'sizes'; denumerability is an example of a characteristic.*Originally posted by sonhouse***One thing I wondered about. If Pathags are infinite but a smaller number of the full set of real numbers, doesn't that make the infinity of real numbers bigger than the infinity of Pathags?**

For example, the set of natural numbers (1,2,3,4) can be put into 1:1 correspondence with the set of even numbers (2,4,6,8), which means they are equivalently denumerable -- this is counterintuitive, because one thinks the set of even numbers must be smaller, since all the odd numbers are missing.- Joined
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23 Dec '15 14:28

If by "Pathags" you mean Pythagorean triple numbers... those aren't real numbers in the first place. They're integers. Reveal Hidden Content*Originally posted by sonhouse***Nice site! Did I detect a tiny but noticeable thread of implied sarcasm here?**

One thing I wondered about. If Pathags are infinite but a smaller number of the full set of real numbers, doesn't that make the infinity of real numbers bigger than the infinity of Pathags?OK, all integers are also real numbers... but you know what I meanSo the infinity of real numbers is greater than the infinity of members from Pythagorean triples*by definition*: c is greater than aleph-zero.- Joined
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wildly content...23 Dec '15 16:57

normally, sarcasm is my goto post...*Originally posted by sonhouse***Nice site! Did I detect a tiny but noticeable thread of implied sarcasm here?**

in this case, i really learned a new thing in my life,

and,

while i cannot yet find a use for it (even in my shop) this is a wonderful bit of knowledge for me...

thanks for asking...- Joined
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26 Dec '15 09:35

Slightly bumpish, but a famous line of Shakespeare can be rendered in symbolic logic: 2 B V 0 2 B*Originally posted by sonhouse***So the guy asks the girl he just encounters: R U over 18?**

Reveal Hidden ContentTo be or not (naught) to be.- Joined
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